In above two routes, chances of noise is less in that system where there is less equipment.

Also, bit one / ten will take the signals and flat them first of all and then recreate the sound signals for the HU. With P80RS, signals will be coming directly from the HU (pure form). I may be wrong but IMO, P80RS seems to work better.

The idea of the 80PRS is certainly favourable, I used to own a 8400 unit in my last install and i loved it for the customisation you had with the outputs. Also this has a USB in which will take the digital signal direct from the ipad mini (only concern is the charging function).

I'm still set on getting a 3 way up front. 6.5" either in door or under seats and the Hertz Mille's (drivers only - no passive crossovers) are what I have my heart set on now. So keepin the active system (bear in mind I have never run an active system before, but have read many pros for doing so)..... I will have

My dilemna comes for the tweets and hi mids. Most amps are set up for HP or LP x-overs. Where the hi mid really needs to be bandpass and tweets the same. As I only have front output from HU driving this, I would imagine I will need to an active X-over here anyway to get the separation that I need(I think). Is this not the case, am I looking too deep into this.

Does anyone know of any good band pass amplifiers out there, I've had a look but most seem to be US brands unavailable here in the UK.

EDIT: Ground Zero Amps look like a likely winner for my price range, so 2 of these and 1 of these. I've also changed my mind to the Hertz HX300d Sub - after reading many reviews and a good road test, I think it will complement the system.

Once again.... thanks.

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The Difference between Genius and insanity??............. Is the measure of success!

Yeah, I am but I will not be pumping all of those W to the speakers. Off hand do you know what the alternater distributes from the 320d, I think it's 150A.

The manuals for those amps recommend a 200A for the 4ch and 180A for the mono, which is something the electrical system will never give. I'll have to look into some more. I only really need the bandpass for tweets & hi mids. Also I'll check out the JBL amps you suggest also.

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The Difference between Genius and insanity??............. Is the measure of success!

makkan...... You legend!!! (Why are there no "Thanks" buttons or Rep buttons on here)I have been downloading the manuals for everything, just not got round to reading them all and only glanced over the 80PRS one. I should have RTFM to understand better. (Slap on the wrist for me!!)

Well that will save me a few quid on selecting my amps. I have chosen the Pioneer PRS D420s as my 4ch amps then.

Makkan, do you have a "build thread" at all for your install/trails, would be interesting to see your progress.

Cheers for info..... I'm off to do some reading now!!

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The Difference between Genius and insanity??............. Is the measure of success!

makkan...... You legend!!! (Why are there no "Thanks" buttons or Rep buttons on here)I have been downloading the manuals for everything, just not got round to reading them all and only glanced over the 80PRS one. I should have RTFM to understand better. (Slap on the wrist for me!!)

Well that will save me a few quid on selecting my amps. I have chosen the Pioneer PRS D420s as my 4ch amps then.

Makkan, do you have a "build thread" at all for your install/trails, would be interesting to see your progress.

Cheers for info..... I'm off to do some reading now!!

Problem is that I keep changing things around.
I have not started my active build yet (would be mak's stage 3 sound system), but it will be pretty much what I have mentioned above.

Also, when you get P80RS, make sure that you update its firmware as new firmware was out few days ago.

I really want P80RS, but I am not sure how much I would gain compared to BMW OEM HU, so started with 88PRS.

I am still waiting for few bits and bobs.

Re: amps, which ever you go for, please make sure that they should be quality amps, otherwise you will not get max out of going active. One example is that if your amps is to produce 20Khz, that means 20K vibrations / secs and just think, how hard is it for amp and a driver.

Those 6.5 are still in an 8" (200cm) enclosure; I would recommend pulling them out and dropping an 8 into the enclosure.

Didn't know that... Thanks for the info.

Quote:

Originally Posted by makkan00

Problem is that I keep changing things around.
I have not started my active build yet (would be mak's stage 3 sound system), but it will be pretty much what I have mentioned above.

Also, when you get P80RS, make sure that you update its firmware as new firmware was out few days ago.

I really want P80RS, but I am not sure how much I would gain compared to BMW OEM HU, so started with 88PRS.

I am still waiting for few bits and bobs.

Re: amps, which ever you go for, please make sure that they should be quality amps, otherwise you will not get max out of going active. One example is that if your amps is to produce 20Khz, that means 20K vibrations / secs and just think, how hard is it for amp and a driver.

Cheers Mak, if I may call you that (it's on your siggi). I've been umming and arrrhing at AMPs for ages as you can guess by the thread title. Also been reading the 80PRS manual, it makes more sense now but I think it will be a practical trial once the rig is in the car and I can start playing with settings. The mute function for speaker sets seems like a rather good idea, to isolate your xover points for a freq range.

So here are the freq of the Milles (I'm using this thread to store alot of info for my install, it maybe useful for someone in the future... who knows.)

So the PRS D420 uses 12db slopes for their cutoffs. And is claimed to have a Freq Response from 10hz to 50Khz (hmmm, thats probably some marketing BS). I think for the power its suited well at 4ch and 2channel.

You have neglected to have the mb quart 3 way system purpose built for the e90/1/2/3 priced at ¬£430. This is what is going in my car along with the pioneer 80prs.

Amp quality is important I am going with genesis in my application.

My car installer highly recommend audison and hertz amps. The 5 channel audison hp5 is tiny in footprint and very meaty in power and would power mids and tweets with two channels, underseats
With the other two and still have 700wrms left for a sub in the boot. It also fits nicely in boot side where cd changer normally lives.

Been looking at the Hertz Amps however the HP range, it looks like are discontinued, I had been considering the HDP4 amp.

But I must say I've just stumbled across a corker of an amp from rainbow.... the iPaul range... must say they do have a fair bit of eye candy about them and have read some good reviews about them (however.... must do more reading).

EDIT: have the iPaul amps really been around this long??? Well I suppose the saying stands.... If it ain't broke... Don't fix it!!

I'm considering the Rainbow CS 365 Vanadium for upfront now (shame you can't just buy the drivers as ships with Xover). I've read nothing but good reviews about them and a lot of people have preffered the tweeter from them as they are not harsh.

What do you guys think??? Go with the Rainbows or stick with the Hertz Mille (Drivers only).

Gonna go for the iPaul Amps too.. 2 x 4.300

Sticking with the Hertz HX300D Sub and the Ground Zero Hydrogen GZHA1.1200DXII amp but may use the iPaul DM2000 to keep continuity of equipment (although it will be hidden anyway).

Any Thoughts (other than filling under seats with 8" subs - this may come later)

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The Difference between Genius and insanity??............. Is the measure of success!

I was toying with the idea of some Dynaudio Esotec MW 172 8" under seats and was worried about mounting depth, hence i stumbled across the above post and it can be done, so i'm happy i have more options than SWS or Jenhert

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The Difference between Genius and insanity??............. Is the measure of success!

I was toying with the idea of some Dynaudio Esotec MW 172 8" under seats and was worried about mounting depth, hence i stumbled across the above post and it can be done, so i'm happy i have more options than SWS or Jenhert

The MW-172 is too deep, no way they fit. MW-182 is actually more shallow, but those may still not fit and if they do, you would have to mod the enclosures heavily. Rainbow WOB200 I'm sure fits, but I haven't seen any proof (yet).

Mmmm i've been looking at Ground Zero when I was choosing AMPs, but never noticed any subs, i'll check them out. Although i did send an email to Rainbow in Germany asking about the 200's, will have to see what they say.

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The Difference between Genius and insanity??............. Is the measure of success!

Well i got home last night and was rather excited to go and get the new wheels only to find out the bloke had sold it to someone else!!! He gave me my deposit back and that was that!! The thing that annoyed me was he said that he wasnt picking up his new car until yesterday which would have worked out fine for both of us... The human race is such an odd Species!!?!

I'm absolutely gutted! So the hunt is on again. That doesn't mean this project is over, only a minor set back, i can still shop.

But I'm away again tomorrow so think i'll go drown my sorrows in the local boozer and watch England stuff Scotland at rugby up here in Aberdeen LOL

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The Difference between Genius and insanity??............. Is the measure of success!